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A map characterized by large-scale detail... usually using contour lines, but historically using a variety of methods

Hydrology

The branch of science concerned with the properties of the earth's water, especially its movement in relation to land

Biomes

A large naturally occurring community of flora and fauna occupying a major habitat like a forest or tundra

Dichotomous

Divided into two distinct parts

Ecosystem

Community of living organisms and their interrelated physical and chemical environment

Environment

Total surroundings (air, water, soil, vegetation, people, wildlife) influencing each living being's existence, including physical, biological and all other factors; the surroundings of a plant or animal, including other plants or animals, climate and loca

Homeostasis

The tendency for a system by resisting change to remain in a state of equilibrium

The role played by an organism in an ecosystem; its food preferences, requirements for shelter, special behaviors and the timing of its activities (e.g., nocturnal, diurnal), interaction with other organisms and its habitat

Consumer

1) Organisms that obtain energy by feeding on other organisms and their remains
2) a person buying goods or services for personal needs or to use in the production of other goods for resale

Decomposer

An organism, often microscopic in size, that obtains nutrients by consuming dead organic matter, thereby making nutrients accessible to other organisms; examples of decomposers include fungi, scavengers, rodents and other animals